一种用于贵金属离子吸附的新浸吸附剂
Zbigniew Hubicki1, Karolina Zinkowska1, Grzegorz Wójcik1
1Department of Inorganic Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University, Maria Curie-Skłodowska Sq. 2, 20-031 Lublin, Poland.
Molecules (Basel, Switzerland)
|August 26, 2023
概括
一种新的浸 Sorbent,Nitrolite-Aliquat 336,有效地从工业废物中回收和. 这种新材料对贵重贵金属的经济回收充满希望.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 黄金,白金,和等贵金属 (NM) 在电子和汽车工业中至关重要.
- 开发具有成本效益和选择性的吸附剂用于MN回收是经济上至关重要的.
- 天然吸收剂尼特洛单独不会吸附NM离子.
研究的目的:
- 开发一种新的浸吸附剂,用于选择性吸附贵金属离子.
- 评估新的金,和黄金吸附剂的吸附能力和效率.
- 评估吸附剂在从真正的工业废物流中回收贵金属中的适用性.
主要方法:
- 使用新的热浸技术,用Aliquat 336浸天然尼特洛石.
- 使用含有 (IV), (II) 和金 (III) 离子的模型化物溶液进行吸实验.
- 在一个耗尽的催化转换器中的液溶液上测试吸附剂的性能.
主要成果:
- 浸的Nitrolite-Aliquat 336吸附剂有效地吸收了 (IV), (II) 和金 (III) 离子.
- 从0.1M HCl中获得了高吸能力:Pt{\displaystyle Pt} 的51.39 mg/g,Pd{\displaystyle Pd} 的47.63 mg/g,Pd{\displaystyle Pd} 的II,和Au{\displaystyle Au} 的73.43 mg/g.
- 吸附剂成功地从真正的浸溶液中回收了Pt (IV) 和Pd (II),但没有 (III).
- 对于Pt (IV),Pd (II) 和Au (III) 来说,使用1M HCl中的1M 尿素在1M HCl中实现了超过94%的溶解.
结论:
- 尼特罗利特-阿利卡特336是一种有希望的,具有成本效益的吸附剂,用于从化物溶液中回收金和.
- 开发的热浸方法增强了铁石对特定贵金属的吸附能力.
- 需要进行进一步的研究,以改善的回收和优化工业应用的溶解过程.
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